Pandoc-related Rmarkdown error when knitting:

Dear RStudio Community,

I am quite new to the community, even though I'm no "stranger" to R so I will try to be as specific as needed and hope you can help me resolve my issue. I must also say I have tried to look for solutions on the community prior to posting and couldn't find it :frowning:

System specs: Rstudio Version 1.2.5033

Background & problem:

I want to work out a Rmarkdown project in order to knit in PDF afterwards (I have TinyTex installed). When I click on the knit button, the Rmarkdown consol starts running but I always get the following message, no matter what format I choose to knit into. The .Rmd file is on my desktop. I have all required packages installed on the following library:

.libPaths()
[1] "\\garcsm0010/HomedirS$/mouliniv/Documents/R/win-library/3.6"
[2] "C:/Program Files/R/R-3.6.2/library"

Rmarkdown script I am trying to knit:

---
title: "Untitled"
author: "Victor M."
date: "25/03/2020"
output: beamer_presentation
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
```

## R Markdown

This is an R Markdown presentation. Markdown is a simple formatting syntax for authoring HTML, PDF, and MS Word documents. For more details on using R Markdown see <http://rmarkdown.rstudio.com>.

When you click the **Knit** button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document.

R console message:
processing file: test.Rmd
|....................... | 33%
ordinary text without R code

|............................................... | 67%
label: setup (with options)
List of 1
$ include: logi FALSE

|......................................................................| 100%
ordinary text without R code

output file: test.knit.md

"C:/Program Files/RStudio/bin/pandoc/pandoc" +RTS -K512m -RTS test.utf8.md --to beamer --from markdown+autolink_bare_uris+tex_math_single_backslash --output test.tex --highlight-style tango --pdf-engine pdflatex --self-contained
pandoc.exe: test.utf8.md: openBinaryFile: does not exist (No such file or directory)
Erreur : pandoc document conversion failed with error 1
Exécution arrêtée

Could you please help me solve this issue?

Thanks a lot

Hi, and welcome!

Please see the FAQ: What's a reproducible example (`reprex`) and how do I do one? Using a reprex, complete with representative data will attract quicker and more answers. Just for future reference: this type of error message really not needed.

The key to the error message is

pandoc.exe: test.utf8.md: openBinaryFile: does not exist (No such file or directory)

which, means that either pandoc is not installed at all, or it isn't findable.